Credit to FieryCharizard7 for the white tower sql and lua. I wrote the text
This doesn't fix your overlap problem, since America already has a Hermitage replacement, but I don't really see how this is too much of an issue.
EDIT: Current 4UC White Tower features, which I guess will form the new basis for a VP England UNW discussion:
UW - White Tower (replaces Hermitage - Tower of Buddhist Incense in EE):
available at Banking
requires Castle
requires 30

Population
+2

Culture
+1

Culture for every 4

Citizens
+3

Culture to all Castles and Arsenals on Empire
+3

Gold to Constabularies and Zoos on Empire
+5

City Defense
Whenever you kill an enemy Spy, gain +100

Gold and

Culture as an instant boost, scaling with Era, and a permanent +1

Happiness in the City
3

Great Works of Art or Artifact Slot (+5

Gold and +5

Culture when themed. 10

themeing bonus)
1 free

Great Work of Art: The Crown Jewels

Production Cost scales with number of cities on Empire